HACKENSACK — Diaper packaging, shoes and writing utensils don't go into the garbage at Hackensack University Medical Center—not anymore.  Now, they and other difficult-to-recycle items will be recycled.  That's because Hackensack University Medical Center has partnered with TerraCycle, a Trenton company that takes such items and turns them into picture frames, pots, backpacks and other products. HUMC is the first hospital to work with Terracycle.